Neurotransmitters, Hormones, Psychoactive Drugs

excitatory

increases action potential in other neurons

inhibitory

decrease action potentials

GABA

major inhibitory

Glutamate

Major excitatory

Dopamine

Reward (short term) & fine movement - in hypothalamus, assoc. w/ addiction

Serotonin

Moods (long-term) emotion, sleep - in amygdala, too little assoc. with depression

Acetylcholine (ACh)

Memory and movement - in hippocampus, assoc with Alzheimer’s

Norepinephrine

sympathetic NS - too little assoc. w/ depression

endorphins

decrease pain

substance P

pain regulation (abnormality increases pain and inflammation)

Oxytocin

love, bonding, childbirth, lactation, fight/flight

Adrenaline

flight/fight

Leptin

makes you full(stops hunger)

Ghrelin

makes you hungry

Melatonin

sleep

Agonist

drug taht mimics a NT

Antagonist

drug that blocks a NT

Reuptake

unused NTs are taken back up into the sending neuron(antidepressants cause reuptake inhibition (block reuptake) - treatment for depression